Timid is plus Speed minus Attack. Hasty is plus speed minus defense.
Also, Saz might have meant HP Ice over Icy Wind in that spot, seeing as if you are using Icy Wind, you aren't using HP Water, meaning you can use HP Ice over Icy Wind instead.

This one is for use in Rain, although you can use Air Slash if not using it in Rain. Rest and Sleep Talk both get priority. This means priority healing for one thing. For another, priority everything. Sleep Talk gets +1 priority, meaning you get +1 Hurricane/Air Slash and +1 Focus Blast. Hurricane/Air Slash are STAB. Focus Blast is pretty solid coverage. Only six Pokemon resist it. And three of them are never seen in OU. One is Uber. And one is pushed out of OU by the other. Meaning you only have to worry about Thundurus-T. Because you get priority on everything, Speed is no longer needed. So you can put your EVs in bulk. Also, you can now run a Modest Nature to hit incredibly hard with 383 Special Attack and a Life Orb. Note that this does have a risk of picking Rest again, so watch out there!

This set (well, one like it at least) can be used on any Pokemon that gets Prankster, Rest, and Sleep Talk.

Rain Sweeper

Hurricane is super strong STAB and has perfect acc in the rain. Hidden-power(Water) gets boosted in the rain and gives coverage. Grass-knot would be for taking out heavy Ground, Rock, and Water types though Dark-pulse can be very useful coverage. Focus-blast is great coverage.

This thing has already became insanely predictable as far as being very switch centered. This specific set lets you Bulk up and make use of your extra defenses, then strike insanely hard with Hammer Arm + Crunch coverage ( Dark + Fighting gets really good coverage ) and STAB Acrobatics. If you start to die out just switch out. With the support of a good spinner you could keep this thing alive for a VERY long time.